We're keeping a watchful eye on the Christmas pounds behind door number 9...
How do I love infinity? Let me count the ways....
Triangles do it, squares do it, even hexagons do it — but pentagons don't. They just won't fit together to tile your bathroom wall.
Make a fractal in infinitely many simple steps!
When Archilles and the tortoise race, who will come second? Find out behind door number two!
How can the number one help spot fraud in tax returns, elections, or mistakes in data sets? Find out behind door number 1!